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252x 252x 252x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 5x 5x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 252x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 252x 252x 252x 252x 252x 252x 252x 252x 252x | import fs from 'fs';
import path from 'path';
import http from 'http';
import { spawn } from 'child_process';
import { buildProject } from './build.js';
import { reportRebuildFailure } from '../fatal.js';
import { cyan, green, yellow, red, gray } from '../colors.js';
import { watchDirectory } from '../utils.js';
import { saveTrace } from '../../lib/core/trace/store.js';
import { TRACE_ENDPOINT } from '../../lib/core/trace/devtools.js';
/**
* The largest request body the trace ingest endpoint will buffer.
*
* A recording is bounded by the recorder's ring buffer, so anything larger is
* not a trace and must not be accumulated in memory.
* @type {number}
*/
const MAX_TRACE_BYTES = 32 * 1024 * 1024;
/**
* Checks whether a resolved path is the project root itself or sits beneath it.
* @param {string} root - Absolute, resolved project root.
* @param {string} target - Absolute, resolved candidate path.
* @returns {boolean}
*/
function isInsideRoot(root, target) {
return target === root || target.startsWith(root + path.sep);
}
/**
* Resolves an incoming request URL to a file path inside the project directory.
*
* The request target is parsed as a URL so query strings and fragments never
* leak into the filesystem path, percent-encoding is decoded before the
* containment check, and the resolved path is required to stay within the
* project root. Node does not normalize `req.url`, so `..` segments would
* otherwise be resolved by `path.join` and escape the project directory.
* @param {string} baseDir - The project root directory.
* @param {string} requestUrl - The raw request target from `req.url`.
* @returns {string|null} An absolute path inside the project, or null when the
* request is malformed or attempts to escape the root.
*/
export function resolveRequestPath(baseDir, requestUrl) {
const root = path.resolve(baseDir);
let pathname;
try {
pathname = decodeURIComponent(new URL(requestUrl || '/', 'http://localhost').pathname);
} catch {
// Malformed percent-encoding.
return null;
}
if (pathname.includes('\0')) {
return null;
}
const relative = pathname.replace(/^\/+/, '');
let filePath = relative === '' ? path.join(root, 'index.html') : path.resolve(root, relative);
if (!isInsideRoot(root, filePath)) {
return null;
}
// SPA fallback: extensionless paths that do not exist serve the entry document.
if (!fs.existsSync(filePath) && !path.extname(filePath)) {
filePath = path.join(root, 'index.html');
}
if (isDeniedProjectPath(root, filePath)) {
return null;
}
return filePath;
}
/**
* Returns true when a resolved path should not be served from the project root.
* Dot segments, node_modules, and package manifests are refused after containment.
* @param {string} root
* @param {string} filePath
* @returns {boolean}
*/
export function isDeniedProjectPath(root, filePath) {
const relative = path.relative(path.resolve(root), path.resolve(filePath));
if (!relative || relative.startsWith('..') || path.isAbsolute(relative)) {
return true;
}
const segments = relative.split(path.sep).filter(Boolean);
const deniedFiles = new Set(['package.json', 'package-lock.json', 'npm-shrinkwrap.json']);
for (const segment of segments) {
if (segment === 'node_modules' || segment.startsWith('.')) {
return true;
}
if (deniedFiles.has(segment)) {
return true;
}
}
return false;
}
/**
* Whether a request to a state-changing dev-server endpoint may be honoured.
*
* The trace ingest endpoint writes a file to `.avenx/traces`, and that file is
* later turned into JavaScript by `avenx trace export`. A POST from a page on
* another origin is a cross-site request: the browser sends it happily, so any
* site the developer visits while `avenx serve --trace` runs could plant a
* trace. Same-origin requests carry either no `Origin` (same-origin fetch in
* some browsers) or one matching the host serving the page.
* @param {object} req - The incoming request.
* @returns {boolean} True when the request originates from this server.
*/
export function isSameOriginRequest(req) {
const origin = req.headers && req.headers.origin;
if (!origin) {
// No Origin header at all: not a cross-site browser request.
return true;
}
if (origin === 'null') {
// An opaque origin -- a sandboxed iframe or a data: URL -- is not this
// server, and is exactly what an attacker page would present.
return false;
}
const host = req.headers && req.headers.host;
if (!host) {
return false;
}
try {
return new URL(origin).host === host;
} catch {
return false;
}
}
/**
* Formats an HTTP response status code with ANSI colors.
* @param {number|string} status
* @returns {string}
*/
export function formatStatusCode(status) {
const code = Number(status) || 0;
if (code >= 200 && code < 300) {
return green(code);
}
if (code >= 300 && code < 400) {
return yellow(code);
}
if (code >= 400) {
return red(code);
}
return String(code);
}
/**
* Formats a log line for an incoming HTTP request.
* @param {string} method - HTTP method (GET, POST, etc.)
* @param {string} url - Request URL path.
* @param {number|string} statusCode - Response HTTP status code.
* @param {number} durationMs - Execution time in milliseconds.
* @param {Date} [date] - Timestamp date object.
* @returns {string} The formatted log string.
*/
export function formatRequestLog(method, url, statusCode, durationMs, date = new Date()) {
const hours = String(date.getHours()).padStart(2, '0');
const minutes = String(date.getMinutes()).padStart(2, '0');
const seconds = String(date.getSeconds()).padStart(2, '0');
const timestamp = `[${hours}:${minutes}:${seconds}]`;
const formattedStatus = formatStatusCode(statusCode);
const formattedDuration = `${Number(durationMs || 0).toFixed(1)}ms`;
return `${timestamp} ${method} ${url} - ${formattedStatus} (${formattedDuration})`;
}
/**
* Attaches an HTTP request logging listener to a response object.
* @param {object} req
* @param {object} res
* @param {Function} [logger] - Custom logger function.
* @returns {Function} Completion logger handler.
*/
export function attachRequestLogger(req, res, logger = console.log) {
const startTime = performance.now();
let logged = false;
const logResponse = () => {
if (logged) return;
logged = true;
const durationMs = performance.now() - startTime;
const statusCode = res.statusCode || 200;
const method = req.method || 'GET';
const url = req.url || '/';
const logLine = formatRequestLog(method, url, statusCode, durationMs);
logger(logLine);
};
res.on('finish', logResponse);
res.on('close', () => {
if (!res.writableEnded) {
logResponse();
}
});
return logResponse;
}
/**
* Applies configured custom headers to an HTTP response.
* @param {object} res - Node HTTP response object.
* @param {object} [headers] - Header name/value pairs from server.headers.
*/
export function applyCustomHeaders(res, headers = {}) {
for (const [name, value] of Object.entries(headers || {})) {
res.setHeader(name, value);
}
}
/**
* Opens the browser to the specified URL.
* @param {string} url
*/
export function openBrowser(url) {
const start = process.platform === 'darwin' ? 'open' : process.platform === 'win32' ? 'start' : 'xdg-open';
// Pass the URL as an argument rather than interpolating it into a shell
// command, so characters in the configured host cannot reach the shell.
spawn(start, [url], { shell: process.platform === 'win32', stdio: 'ignore', detached: true }).unref();
}
/**
* Generates the default index.html template content.
* @param {object} cli
* @returns {string} The initial HTML template string.
*/
export function getInitialHtml(cli) {
return `<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Avenx App</title>
<link rel="stylesheet" href="${cli.config.distDir}/bundle.css">
</head>
<body>
<div id="app"></div>
<script src="${cli.config.distDir}/bundle.js"></script>
</body>
</html>`;
}
/**
* Generates the Dev Server Inspection Dashboard HTML page.
* @param {object} cli
* @returns {string} The dashboard HTML content.
*/
export function getInspectorHtml(cli) {
const configJson = JSON.stringify(cli.config);
return `<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Avenx Inspection Dashboard</title>
<style>
:root {
--bg-color: #09090b;
--card-bg: #18181b;
--card-border: #27272a;
--text-main: #f4f4f5;
--text-muted: #a1a1aa;
--accent-blue: #3b82f6;
--accent-green: #10b981;
--accent-red: #ef4444;
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
background-color: var(--bg-color);
color: var(--text-main);
min-height: 100vh;
overflow-x: hidden;
}
.dashboard-wrapper {
display: flex;
flex-direction: column;
min-height: 100vh;
}
.app-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem 2rem;
border-bottom: 1px solid var(--card-border);
background: var(--card-bg);
position: sticky;
top: 0;
z-index: 100;
}
.brand {
display: flex;
align-items: center;
gap: 0.75rem;
}
.brand .title {
font-size: 1.1rem;
font-weight: 600;
color: var(--text-main);
letter-spacing: -0.01em;
}
.badge {
font-size: 0.75rem;
font-weight: 600;
padding: 0.25rem 0.6rem;
border-radius: 4px;
text-transform: uppercase;
letter-spacing: 0.05em;
}
.badge.disconnected {
background: rgba(239, 68, 68, 0.1);
color: var(--accent-red);
border: 1px solid rgba(239, 68, 68, 0.2);
}
.badge.connected {
background: rgba(16, 185, 129, 0.1);
color: var(--accent-green);
border: 1px solid rgba(16, 185, 129, 0.2);
}
.dashboard-main {
display: flex;
flex: 1;
padding: 2rem;
gap: 2rem;
}
.sidebar {
width: 280px;
flex-shrink: 0;
display: flex;
flex-direction: column;
gap: 1.5rem;
}
.dashboard-grid {
flex: 1;
display: grid;
grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
gap: 1.5rem;
align-content: start;
}
.card {
background: var(--card-bg);
border: 1px solid var(--card-border);
border-radius: 8px;
padding: 1.5rem;
}
.card:hover {
border-color: #3f3f46;
}
.card h3 {
font-size: 1rem;
font-weight: 600;
margin-bottom: 1.25rem;
color: var(--text-main);
display: flex;
justify-content: space-between;
align-items: center;
}
.card h4 {
font-size: 0.9rem;
font-weight: 600;
margin-top: 1rem;
margin-bottom: 0.75rem;
color: var(--accent-blue);
}
.config-item {
font-size: 0.85rem;
margin-bottom: 0.75rem;
display: flex;
justify-content: space-between;
}
.config-item strong {
color: var(--text-muted);
font-weight: 500;
}
.info-list {
display: flex;
flex-direction: column;
gap: 0.75rem;
max-height: 400px;
overflow-y: auto;
padding-right: 0.25rem;
}
/* Custom Scrollbar */
.info-list::-webkit-scrollbar {
width: 6px;
}
.info-list::-webkit-scrollbar-track {
background: transparent;
}
.info-list::-webkit-scrollbar-thumb {
background: rgba(255, 255, 255, 0.1);
border-radius: 3px;
}
.info-item {
background: rgba(255, 255, 255, 0.01);
border: 1px solid var(--card-border);
border-radius: 6px;
padding: 0.75rem 1rem;
font-size: 0.85rem;
display: flex;
flex-direction: column;
gap: 0.5rem;
transition: background 0.2s;
}
.info-item:hover {
background: rgba(255, 255, 255, 0.03);
border-color: #3f3f46;
}
.info-header {
display: flex;
justify-content: space-between;
align-items: center;
width: 100%;
}
.route-path {
font-family: monospace;
color: var(--accent-blue);
font-weight: 600;
}
.route-page {
color: var(--text-muted);
}
.route-info {
background: rgba(59, 130, 246, 0.03);
border: 1px solid rgba(59, 130, 246, 0.15);
border-radius: 6px;
padding: 0.75rem 1rem;
font-family: monospace;
font-size: 0.85rem;
color: var(--accent-blue);
}
.comp-name {
font-weight: 600;
color: var(--text-main);
}
.comp-details {
padding-left: 0.75rem;
border-left: 2px solid var(--card-border);
font-size: 0.8rem;
color: var(--text-muted);
width: 100%;
}
.bridge-header {
font-weight: 600;
color: var(--text-main);
}
.state-explorer {
font-family: monospace;
background: #09090b;
border: 1px solid var(--card-border);
border-radius: 6px;
padding: 0.5rem;
margin-top: 0.5rem;
font-size: 0.8rem;
color: var(--text-muted);
white-space: pre-wrap;
word-break: break-all;
width: 100%;
}
hr {
border: 0;
border-top: 1px solid var(--card-border);
margin: 1.25rem 0;
}
</style>
</head>
<body>
<div class="dashboard-wrapper">
<header class="app-header">
<div class="brand">
<span class="title">Avenx Inspector</span>
</div>
<div class="status-indicator">
<span class="badge" id="statusBadge">Connecting...</span>
</div>
</header>
<main class="dashboard-main">
<!-- Sidebar for Config Info -->
<aside class="sidebar">
<div class="card config-card">
<h3>Dev Server Config</h3>
<div class="config-item"><strong>Port:</strong> <span id="confPort">-</span></div>
<div class="config-item"><strong>Host:</strong> <span id="confHost">-</span></div>
<div class="config-item"><strong>Src Dir:</strong> <span id="confSrc">-</span></div>
<div class="config-item"><strong>Dist Dir:</strong> <span id="confDist">-</span></div>
</div>
</aside>
<!-- Dashboard Grid Content -->
<section class="dashboard-grid">
<!-- Routing Section -->
<div class="card grid-card routing-card">
<h3>Active Routing Table</h3>
<div id="routingList" class="info-list"></div>
<hr />
<h4>Current Route</h4>
<div id="currentRouteInfo" class="route-info">-</div>
</div>
<!-- Components Section -->
<div class="card grid-card components-card">
<h3>Active Component Tree</h3>
<div id="componentsList" class="info-list"></div>
</div>
<!-- Bridges Section -->
<div class="card grid-card bridges-card">
<h3>Bridges & Reactive State</h3>
<div id="bridgesList" class="info-list"></div>
</div>
</section>
</main>
</div>
<script>
window.__avenx_config = ${configJson};
const channel = new BroadcastChannel('avenx-inspector-channel');
let lastUpdate = 0;
function updateStatus(connected) {
const badge = document.getElementById('statusBadge');
if (connected) {
badge.textContent = 'Live';
badge.className = 'badge connected';
} else {
badge.textContent = 'Disconnected';
badge.className = 'badge disconnected';
}
}
channel.onmessage = (event) => {
if (event.data && event.data.type === 'inspect-data') {
updateStatus(true);
lastUpdate = Date.now();
renderDashboard(event.data.data);
}
};
// Render server config immediately
const config = window.__avenx_config || {};
document.getElementById('confPort').textContent = config.server?.port || '3000';
document.getElementById('confHost').textContent = config.server?.host || 'localhost';
document.getElementById('confSrc').textContent = config.srcDir || 'src';
document.getElementById('confDist').textContent = config.distDir || 'dist';
// Request data periodically to establish connection
function requestUpdate() {
channel.postMessage('request-inspect-data');
// If no message received for 2.5 seconds, show disconnected
if (Date.now() - lastUpdate > 2500) {
updateStatus(false);
}
}
setInterval(requestUpdate, 1000);
requestUpdate();
// Everything below is application data -- component state, props,
// bridge state, route params -- and it routinely holds whatever a user
// typed or an API returned. It is written with innerHTML, so it is
// escaped first; an inspector that renders the app's own data as markup
// is a script-execution sink on the dev server's origin.
function esc(value) {
return String(value === undefined ? '' : value)
.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/"/g, '"')
.replace(/'/g, ''');
}
function renderDashboard(data) {
// 1. Render routes
const routingList = document.getElementById('routingList');
routingList.innerHTML = '';
if (data.routes && Object.keys(data.routes).length > 0) {
Object.entries(data.routes).forEach(([pattern, def]) => {
const pageName = typeof def === 'string' ? def : def.page;
const item = document.createElement('div');
item.className = 'info-item';
item.innerHTML = \`
<div class="info-header">
<span class="route-path">\${esc(pattern)}</span>
<span class="route-page">\${esc(pageName)}</span>
</div>
\`;
routingList.appendChild(item);
});
} else {
routingList.innerHTML = '<div class="text-muted" style="font-size:0.85rem;color:var(--text-muted);">No routes configured.</div>';
}
// 2. Render current route
const currentRouteInfo = document.getElementById('currentRouteInfo');
if (data.currentRoute) {
currentRouteInfo.innerHTML = \`
<div style="margin-bottom:0.25rem;"><strong>Hash:</strong> <span style="color:var(--accent-blue);">\${esc(data.currentRoute.hash)}</span></div>
<div style="margin-bottom:0.25rem;"><strong>Page:</strong> \${esc(data.currentRoute.page)}</div>
<div style="margin-top:0.5rem;"><strong>Params:</strong></div>
<pre class="state-explorer">\${esc(JSON.stringify(data.currentRoute.params || {}, null, 2))}</pre>
\`;
} else {
currentRouteInfo.innerHTML = '<div style="color:var(--text-muted);">None (App not routing or on initial load)</div>';
}
// 3. Render active components
const componentsList = document.getElementById('componentsList');
componentsList.innerHTML = '';
if (data.activeComponents && data.activeComponents.length > 0) {
data.activeComponents.forEach((comp) => {
const item = document.createElement('div');
item.className = 'info-item';
item.innerHTML = \`
<div class="info-header">
<span class="comp-name">\${esc(comp.name)}</span>
</div>
<div class="comp-details">
<div style="margin-top:0.25rem;"><strong>Props:</strong></div>
<pre class="state-explorer">\${esc(JSON.stringify(comp.props, null, 2))}</pre>
<div style="margin-top:0.5rem;"><strong>State:</strong></div>
<pre class="state-explorer">\${esc(JSON.stringify(comp.state, null, 2))}</pre>
</div>
\`;
componentsList.appendChild(item);
});
} else {
componentsList.innerHTML = '<div class="text-muted" style="font-size:0.85rem;color:var(--text-muted);">No active components in DOM.</div>';
}
// 4. Render bridges
const bridgesList = document.getElementById('bridgesList');
bridgesList.innerHTML = '';
if (data.registeredBridges && Object.keys(data.registeredBridges).length > 0) {
Object.entries(data.registeredBridges).forEach(([name, state]) => {
const item = document.createElement('div');
item.className = 'info-item';
item.innerHTML = \`
<div class="info-header">
<span class="bridge-header">\${esc(name)}</span>
</div>
<pre class="state-explorer">\${esc(JSON.stringify(state, null, 2))}</pre>
\`;
bridgesList.appendChild(item);
});
} else {
bridgesList.innerHTML = '<div class="text-muted" style="font-size:0.85rem;color:var(--text-muted);">No bridges registered.</div>';
}
}
</script>
</body>
</html>`;
}
/**
* Watches the src directory for changes and triggers a rebuild.
* @param {object} cli
*/
export function watchProject(cli) {
let timeout;
const srcPath = path.join(cli.baseDir, cli.config.srcDir);
if (!fs.existsSync(srcPath)) return null;
const watcher = watchDirectory(srcPath, (eventType, filename) => {
if (filename) {
clearTimeout(timeout);
timeout = setTimeout(() => {
console.log(`\n${cyan(`📄 Change detected: ${filename}. Rebuilding...`)}`);
try {
buildProject(cli);
} catch (error) {
// A watch session keeps going: the next save usually fixes it. The
// browser is not reloaded, so it keeps showing the last good build
// rather than a blank page.
reportRebuildFailure(error);
return;
}
if (cli.liveReloadClients) {
cli.liveReloadClients.forEach((client) => {
client.write('data: reload\n\n');
});
}
}, 100);
}
});
if (cli) {
cli._watcher = watcher;
}
return watcher;
}
/**
* The address a configured host should actually bind.
*
* `localhost` is a name, and Node resolves it to a single family. On a machine
* whose resolver answers `::1` first, `server.listen(port, 'localhost')` binds
* IPv6 only, and every client that reaches for `127.0.0.1` -- curl, a proxy, a
* container, the E2E harness -- gets ECONNREFUSED while the browser works. The
* loopback interface is bound explicitly instead, and the IPv6 loopback is
* added alongside it by {@link listenLoopbackAlias}, so both families answer.
* @param {string} host - The configured host.
* @returns {string} The address to bind.
*/
export function bindAddressFor(host) {
return host === 'localhost' ? '127.0.0.1' : host;
}
/**
* Adds a second listener on the IPv6 loopback for a server bound to 127.0.0.1.
*
* Only for the default `localhost` host: an explicitly configured address is
* bound exactly as asked. Failure is not an error -- a machine without IPv6, or
* one where something already holds `[::1]` on this port, simply keeps the IPv4
* listener it already has.
* @param {object} requestListener - The handler both listeners share.
* @param {string} host - The configured host.
* @param {number} port - The port the primary listener bound.
* @returns {object|null} The secondary server, or null when one was not added.
*/
export function listenLoopbackAlias(requestListener, host, port) {
if (host !== 'localhost') {
return null;
}
const alias = http.createServer(requestListener);
alias.on('error', () => {
// No IPv6 loopback, or it is already taken: the IPv4 listener stands alone.
});
alias.listen(port, '::1');
return alias;
}
/**
* Listens on the requested port, incrementing it when the address is occupied.
* @param {object} server
* @param {number|string} requestedPort
* @param {string} host
* @param {Function} onListening
*/
export function listenWithPortFallback(server, requestedPort, host, onListening) {
let port = Number(requestedPort);
const address = bindAddressFor(host);
server.once('listening', () => onListening(port));
server.on('error', (err) => {
if (err.code !== 'EADDRINUSE' || port >= 65535) {
throw err;
}
const occupiedPort = port;
port += 1;
console.warn(`\n${yellow(`Port ${occupiedPort} is already in use. Trying ${port} instead.`)}`);
server.listen(port, address);
});
server.listen(port, address);
}
/**
* Starts a local development server and watches for changes.
* @param {object} cli
* @param {number|string} port
* @param {string} [host]
* @param {boolean} [open]
*/
export function serveProject(cli, port, host = 'localhost', open = false) {
buildProject(cli);
if (cli.config.server.liveReload) {
cli.liveReloadClients = [];
watchProject(cli);
}
const requestListener = (req, res) => {
attachRequestLogger(req, res);
applyCustomHeaders(res, cli.config.server.headers);
if (cli.config.server.liveReload && req.url === '/__avenx_live_reload__') {
res.writeHead(200, {
'Content-Type': 'text/event-stream',
'Cache-Control': 'no-cache',
Connection: 'keep-alive',
});
res.write('data: connected\n\n');
cli.liveReloadClients.push(res);
req.on('close', () => {
cli.liveReloadClients = cli.liveReloadClients.filter((client) => client !== res);
});
return;
}
// Trace ingest. Only mounted for `avenx serve --trace`, so a dev server
// without the flag has no endpoint that writes to disk at all.
if (cli.traceEnabled && req.method === 'POST' && req.url === TRACE_ENDPOINT) {
// A trace becomes a generated test, so accepting one from another origin
// would let any page the developer visits plant source in the project.
if (!isSameOriginRequest(req)) {
console.warn(
yellow(`Refused a cross-origin trace upload from ${String(req.headers.origin).slice(0, 120)}.`),
);
res.writeHead(403, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: 'Cross-origin trace uploads are refused' }));
return;
}
let body = '';
let tooLarge = false;
req.on('data', (chunk) => {
body += chunk;
// A trace is bounded by the recorder's ring buffer, so anything past
// this is not a trace and must not be buffered indefinitely.
if (body.length > MAX_TRACE_BYTES) {
tooLarge = true;
res.writeHead(413, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: 'Trace too large' }));
req.destroy();
}
});
req.on('end', () => {
if (tooLarge) {
return;
}
try {
const trace = JSON.parse(body);
const savedPath = saveTrace(cli.baseDir, trace);
const nodes = Array.isArray(trace.nodes) ? trace.nodes.length : 0;
const status = (trace.determinism && trace.determinism.status) || 'unknown';
console.log(
`\n${green(`📼 Recorded ${trace.id}`)} ${gray(`· ${nodes} nodes · ${status}`)}\n` +
` ${cyan(`avenx trace view ${trace.id}`)}\n` +
` ${cyan(`avenx trace export ${trace.id}`)}\n`,
);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: true, id: trace.id, path: savedPath }));
} catch (error) {
console.error(`Failed to save trace: ${error.message}`);
res.writeHead(400, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: error.message }));
}
});
return;
}
if (req.url === '/__avenx-inspect') {
res.writeHead(200, { 'Content-Type': 'text/html' });
res.end(getInspectorHtml(cli));
return;
}
const filePath = resolveRequestPath(cli.baseDir, req.url);
if (filePath === null) {
res.writeHead(403);
res.end('Forbidden');
return;
}
const extname = String(path.extname(filePath)).toLowerCase();
const mimeTypes = {
'.html': 'text/html; charset=utf-8',
'.js': 'text/javascript; charset=utf-8',
'.mjs': 'text/javascript; charset=utf-8',
'.css': 'text/css; charset=utf-8',
'.json': 'application/json; charset=utf-8',
'.svg': 'image/svg+xml; charset=utf-8',
'.txt': 'text/plain; charset=utf-8',
'.map': 'application/json; charset=utf-8',
'.png': 'image/png',
'.jpg': 'image/jpeg',
'.jpeg': 'image/jpeg',
'.gif': 'image/gif',
'.webp': 'image/webp',
'.avif': 'image/avif',
'.ico': 'image/x-icon',
'.woff': 'font/woff',
'.woff2': 'font/woff2',
'.ttf': 'font/ttf',
'.eot': 'application/vnd.ms-fontobject',
'.mp4': 'video/mp4',
'.webm': 'video/webm',
'.mp3': 'audio/mpeg',
};
const contentType = mimeTypes[extname] || 'application/octet-stream';
fs.readFile(filePath, (error, content) => {
if (error) {
if (error.code === 'ENOENT') {
res.writeHead(404);
res.end('File not found');
} else {
res.writeHead(500);
res.end('Server error: ' + error.code);
}
} else {
let responseContent = content;
// Compared against the extension rather than the full Content-Type:
// the mime map returns 'text/html; charset=utf-8', so an equality test
// against 'text/html' was never true and live reload was silently dead
// for every page the dev server served.
if (cli.config.server.liveReload && extname === '.html') {
const script = `
<script>
if ('EventSource' in window) {
const source = new EventSource('/__avenx_live_reload__');
source.onmessage = (e) => {
if (e.data === 'reload') {
window.location.reload();
}
};
}
</script>
`;
const traceScript = cli.traceEnabled
? `
<script>
// Injected by \`avenx serve --trace\`. Recording is opt-in and never
// reaches a production build.
window.addEventListener('DOMContentLoaded', function () {
if (window.Avenx && window.Avenx.installTraceRecorder) {
window.Avenx.installTraceRecorder(${JSON.stringify({
endpoint: TRACE_ENDPOINT,
redact: (cli.config.trace && cli.config.trace.redact) || [],
maxNodes: (cli.config.trace && cli.config.trace.maxNodes) || undefined,
})});
} else {
console.warn('[Avenx] --trace is on but the runtime did not load; nothing is being recorded.');
}
});
</script>
`
: '';
// The inspector flag has to be set *before* the application bundle
// runs: `new AvenxApp()` calls `initInspector`, which returns
// immediately when the flag is not yet there. Injected at the end of
// the body -- after the bundle's <script> -- it always was, so the
// inspector page never received any data. The flag therefore goes
// into the head, and everything that only reacts to later events
// stays at the end of the body.
const headScript = '\n<script>window.__avenx_inspect_enabled = true;</script>\n';
let contentStr = content.toString('utf-8');
if (contentStr.includes('</head>')) {
contentStr = contentStr.replace('</head>', `${headScript}</head>`);
} else {
contentStr = headScript + contentStr;
}
const injected = `${script}${traceScript}`;
if (contentStr.includes('</body>')) {
responseContent = contentStr.replace('</body>', `${injected}</body>`);
} else {
responseContent = contentStr + injected;
}
}
res.writeHead(200, { 'Content-Type': contentType });
res.end(responseContent, 'utf-8');
}
});
};
const server = http.createServer(requestListener);
listenWithPortFallback(server, port, host, (activePort) => {
// `localhost` names both loopback families. The primary listener holds the
// IPv4 one; this adds the IPv6 one so neither address is refused.
cli._loopbackAlias = listenLoopbackAlias(requestListener, host, activePort);
const url = `http://${host}:${activePort}`;
console.log(`\n${green(`🚀 Dev-Server running at ${url}`)}`);
if (cli.config.server.liveReload) {
console.log(cyan(`👀 Watching for changes in ${cli.config.srcDir}/...\n`));
}
if (cli.traceEnabled) {
console.log(green('📼 Trace recording is ON.'));
console.log(gray(' Reproduce the behaviour, then run `await avenxTrace.save()` in the console'));
console.log(gray(' (or navigate away — the trace is sent automatically).\n'));
}
if (open) {
openBrowser(url);
}
});
} |